When it comes to air conditioning, the first thing we think of is the frequency conversion. It must be said that the inverter air conditioner is undoubtedly the development trend of the air conditioner in the future, and the mainstream manufacturers are preparing to eliminate the fixed frequency mac

From the halogen bulbs of tungsten filaments to xenon headlamps that emit light with inert gases to the LED (light-emitting diode) technology that has been popular in recent years, the evolution of single-source performance has not been able to meet the complex and varied road conditions and peop

According to relevant industry insiders in Taiwan, although mainland Chinese manufacturers have recently applied for a large number of MOCVD machines, they have been affected by LED talents and technology. The actual amount of mass production is only 1/3, plus the current MOCVD machine shipment pre